The cheapest tickets for a Bulls game are commonly found in sections behind the basket in the 300 level. These seats draw high marks for being budget-friendly, but lack quality views of the court and an engaging atmosphere.
The two biggest issues with sitting behind the basket are the obstructions caused by the hoops and distance from the court. When looking towards the action on the near basket, it can be difficult to tell whether baskets are made or missed because the backboards get in the way. You'll be able to see the other end without distraction but being more than 200 feet away can make it difficult to see much detail.
If you're considering tickets in one of these baseline sections, chances are you're doing it with a strict budget in mind. To get the most bang for your buck, aim for seats closer to the corners of the arena. You'll have a better angle to the court and be near one of the upper level bars. Also, consider the lowest row you can afford. This will limit the number of stairs you have to walk and make it easier to get to and from the concourse (not to mention that the lowest rows offer the best views).